横向
1
Number with digits after a point
2
Rectangle with four equal sides
5
Number that divides evenly into another
6
Corner point of a polygon
8
Rectangular array of numbers
纵向
2
Steepness of a line
3
Line segment connecting two circle points
4
Symbol representing unknown value
7
Middle value in an ordered dataset
9
U-shaped curve of a quadratic function
10
The number representing nothing